When you're short on time, kill off the idiots and sociopaths, and find the good people and reward them so they have 8+ kids each. Victory in two generations.
Otherwise, we can keep watching nature die off, the oceans get polluted, the forests get cut down, our culture devolve into stupidity, etc. etc.
This is a topic for men without television sets, not children with addictions to youth culture. It will not be popular.